datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1999,06 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 2:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 3:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 4:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,06 5:30:00,30 ,       0,39.37893,15.79781,10.55258
sgpcmbeC1.c1,1999,06 6:30:00,30 ,0.937763,195.6105,97.94599,63.04706
sgpcmbeC1.c1,1999,06 7:30:00,30 ,3.037549,396.8506,230.7124,131.9794
sgpcmbeC1.c1,1999,06 8:30:00,30 ,15.99028,591.7822,373.5529, 178.743
sgpcmbeC1.c1,1999,06 9:30:00,30 ,61.52931,750.0315,534.4393,218.2538
sgpcmbeC1.c1,1999,0610:30:00,30 , 1.71998, 876.557, 601.391,273.0333
sgpcmbeC1.c1,1999,0611:30:00,30 , 6.13663,971.8168,655.8411,300.2764
sgpcmbeC1.c1,1999,0612:30:00,30 ,12.09224, 984.116,632.5238,320.4889
sgpcmbeC1.c1,1999,0613:30:00,30 ,35.20392,950.9672,603.3912,293.2571
sgpcmbeC1.c1,1999,0614:30:00,30 ,19.53198,869.9955, 569.409,262.2129
sgpcmbeC1.c1,1999,0615:30:00,30 ,4.539448,  754.48,493.0457,221.3871
sgpcmbeC1.c1,1999,0616:30:00,30 ,2.377421,578.1015, 396.403,146.8983
sgpcmbeC1.c1,1999,0617:30:00,30 , 2.30024,386.6433,243.4261,112.2332
sgpcmbeC1.c1,1999,0618:30:00,30 ,       0,245.9216,109.3945,60.73717
sgpcmbeC1.c1,1999,0619:30:00,30 ,       0,45.51983,20.87258,12.00269
sgpcmbeC1.c1,1999,0620:30:00,30 ,       0,1.581537,0.052718,0.288748
sgpcmbeC1.c1,1999,0621:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0622:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,1999,0623:30:00,30 ,       0,       0,       0,       0